Steel-joist machine



Oct. 30 1923. 1,472,771

H. M. NAUGLE ET AL STEEL JOIST MACHINE Original Filed May 20. 1921 9 Sheets-Sheet 1 Whom 14f 0 flu? izwmezzd jaw M W Oct. 30 1923.

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Oct. 30 1923. 1,472,771

H. M. NAUGLE ET AL STEEL JOIST MACHINE Original Filed May 20. 1921 9 Sheets-Sheet 5 hfM/Vaag/e 0 Au. 75zzzz2e22d 5% MM mp EM/tw/Mbow Oct. so, 1923.

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H. M. NAUGLE ET AL STEEL JOIST MACHINE Original Filefd May 2C. 1921 9 Sheets-Sheet 4 Oct. 30 1923.

H. M. NAUGLE ET AL STEEL JOI ST MACHINE Original Filed May 20. 1921 mum 9 Sheets-Sheet 34%4 to w HM fl/aa q/e 0 Ad fizz/wand I fame M g Oct. 30,1923. '1',72,771 H. M. NAUGLE ET AL SSSSSSSSSSSSSSS NE M g am Oct. '30 1923. 1,472,771

H M. NAUGLE ET AL STEEL JOIST MACHINE Original Filed May 20. 1921 9 Sheets-Sheet 8 I AJ. 7bzzzzzsezzd 5r. g wa M W Oct; 30,1923. 1,472,771

- H. M. NAUGLE ET AL STEEL JOIST MACHINE Original Filed May 20. 1921 9 Sheets-Sheet 9 awuembo co HM [Vazgle w Patent Oct. 30, 1923.

HARRY M. NAUGLE AND ARTHUR J. TOWNSEND, 0F CANTON, OHIO, ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, T0 JONES AND LAUGHLINSTEEL COMPANY,- DIE-PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.-

STEEL-J'OIST MACHINE.

Original application filed May 20, 1921', Serial No. 471,295. Divided and this application filed June 24, 1921. Serial No. 480,143.

To all whom it may concern:

Be it'known that we, HARRY M. NAUGLE and ARTHUR J. TOWNSEND, citizens of the United States, residingat Canton, in the county of Stark and State of Ohio, have invented a new and useful Improvement in Steel-Joist Machines, of which the following is a specification.

The invention relates to apparatus for making steel joists and the like, for use in buildin construction inplaces where standard ro led structural shapes may not be used because of the excessiveweight or im-* proper distribution of the metal therein; this application .beinga division of ouraps plication, Serialv No. 471,295, filed May 20, 1921, for steel joist manufacture.

A standard rolled beam cannot be economicall used as a floonjoist or like member in 'buil in'g construction, because the limitations 0 rolling methods prevent the web portion" being reduced to a thickness which would correspond in strength and rigidity to the resistance of the flange portions, so that there is an unnecessary weight of metal in the web.

Likewise, in the ordinary forms of steel joists, made of pressed channels with their webs abutted and secured together, the double thickness of the web portions gives an unnecemarg weight of metal therein, as compared wit the strength of the flange 1 tions.

The present invention involves apparatus for expanding the web portion of a'rolled 1- beam or other structural shape into an integral lattice portion; in such a manner that the strength of the lattice will be co-ordinated with that of the flanges without any excess metal being present in any portion of the beam.

The expansion of the web between the flanges of a rolled beam, necessarily requires a stretching of the bars of the lattice portion, because the length of the flanges cannot be contracted; and a stretching of bars effected by a lateral se aration of the flanges, can only be accomp ished to a limited extent in an expansion comprising a single row of bars alternately inclined to form a series of triangles.

The object of the present improvement is 'lowed by a flattening o the bonds and bars to the original plane of the web.

A further purpose of the improvement is to perform the operations of. cutting the slits, deflecting the bonds, stretching the bars, forming the lattice, and flattening the same by a single continuous movement of the material, and without shortening or distorting the flanges of the beam.

The accompanying drawings, forming part hereof, illustrate the method and show apparatus for expanding the web of a rolled I-beam, by slitting four rows of bars and forming three rows of hexagonal openings.

Referring to the drawings, Figure 1 is a diagrammatic plan view, in. two sections, of the apparatus;

Fig. 2, a fragmentary elevation of the slitting rolls;

Fig. 3, a section of the same on line 1II III, Fig. 2;

Fig. 4, a side elevation of the bar flattening rolls showing the guides extending therefrom; I

Fig. 5, a section on line V Fig. 4;

Fig. 6, a sectiononvline VI-VI, Fi 4;

Fig.7, a fragmentary side plan 0 an I-beam;

Fig. 8, a cross section of same;

Fig. 9, a plan of same, showing the web slit to form bars;

' Fig. 10, a section of same on line X-X,

Fig. 11, a fragmentary elevation of the bar flattening rolls, showing an r-beam in section with the web slit and flattened;

Fig. 12, a fragmentary side plan of the beam showing the bonds corrugated, and the bars slightly stretched and separated;

Fig. 13, a fragmentary elevation of the corrugating rolls, showing a beam in section, as on line XIII-XIII, Fig. 12;

Fig. 14, a fragmentary section of the corrugating rolls, as on line XIV-XIV, Fig. 13, showing the operation of corrugating the bonds;

Fig. 15, a fragmentary side plan of the beagn, showing the initial expansion of the we Fig. 18, a fragmentary elevation of the stretching rolls, showing in section, the initially expanded web, as on line XVI-XVI,

F ilg. 15,

ig. 17, a fragmentary section of the stretching rolls as on line XVIIXVII, Fig. 16, showing the opertaion of fully stretching the bars;

Fig. 18, a fragmentary side plan of the beam, showing the lattice fully expanded;

Fig. 19, a section of the expanding guides as on line XIX-XIX, Fig.1, showing the full expanded lattice, as on line XI -XIX, Fig. 18.;

Fig. 20, a fragmentary side plan of the beam with the fully expanded lattice finally flattened; and

Fig. 21. a fragmentary elevation of the lattice flattening rolls, showin the beam in section, as on line XXL-XXI, Fig. 20.

Similar numerals refer to similar parts throughout the drawings.

The apparatus may include slitting rolls 1, bar flattening rolls 2, bond corrugating rolls bar stretching rolls 4, lattice flattening rolls 5. and delivery rolls 6; all of which rolls may be mounted in suitable housings '7, and arranged to be continuously driven at the proper speed by a motor 8 and gearings 9 and 10.

The beam blank shown in Figs 7 and 8, may have flanges 11 rolled with a web 12, which web may be and preferably is somewhat thicker than in a standard structural shape. The beam may be received directly from the table rolls of a rolling mill at a working temperature of say 1500 F. A cold beam may be reheated to a working temperature, or light sections may be worked d.

Parallel guides ll may engage the flanges 11 of the beam "for properly directing it to theslitting rolls, and like parallel guides for engaging and directing the flanges extend from the slitting rolls 1 to the bar flattening rolls 2, and also from the bar flattening rolls to the bond corrugating rolls As shown in Figs. and 6, these guides may each comprise a base plate 15 abutting the flat outer face of the flange, and two plates having lateral tongues fitting the inclined inner faces of the flange, the plates being clamped together by bolts 16.

The guides 14 may rest and slide laterally upon pedestals l7, and are adjusted and secured in proper lateral position for beams of various depths, by means of screw shanks 18 having heads 19 swiyelled in the base plates 15, operating in screw bearings 20 secured in the housings 7, and having hand wheels 21 ontheir outer ends.

The, slitting rolls may be of any well known type, and as shown are provided with stripper plates 22 mounted between spacer plates 23. These rolls. out the web with series oflaterally spaced interrupted slits 24, with intervenlng bonds 25; and the slitting ope-ration displaces the bars 26 formed thereby, to one side or the other of the original plane of the web, as shown in Fig. 10.

The slitting rolls are preferably formed with inclined ends 27 operating against the inner inclined faces of the beam flanges; and the base bars 15 of the guides14 are preferably extended continuously through between the rolls so as to positively control the movements of the flan s.

The operation of the sfi tting rolls drives the beam forward to the bar flattening rolls 2, which are provided with inclined ends 27' for engaging the beam flanges, and the cylindric faces 28 of these rolls, compress the slitted portion of the web into the original plane thereofl/as shown in Fig. 11; in which form the beam is fed forward, and is directed by the parallel guides 14, to the bond corrugating rolls 3.

The bond corrugating rolls 3 are preferably provided with inclined ends 27 for engaging the inner fares and adjacent portions of the web of the beam for propelling the same; and upon the faces of the rolls, are formed a series of annularflanges 29, preferably having ii-shaped peripheries, which are spaced to impinge the opposite sides of alternate series of bonds 25 between the interrupted slits 24 of the web, so as to form reversely V-shaped' corruga- 'tions in the alternate series of bonds, and

to correspondingly incline and slightly stretch the bars. as shown in Figs 12, 13 and 14.

The peripheries of the flanges may be so proportioned that the angle of one series of corrugated bonds will remain in the original plan of the web, while the other series of corrugated bonds and the intervening bans will be deflected to one side thereof, as shown in Figs.. 13 and 14. The width of the flanges is preferably such that their sides do not overlap, and grooves 30 are preferably provided between the adjacent flanges '29. free from contact with the coacting flanges, so that the bonds and bars are not pressed between them.

The operation of the corrugating flanges slightly opens the slits at the sides of each bond, as shown in Figs. 12 and 13, and serves to straight stretch the bars by tension to elongate them longitudinally equal to the increased distance between the deflected bonds.

Upon leaving the bond corrugating rolls, the beam continues forward to the bar ae'remi stretching rolls 4, and in passing from the corrugatin to the stretching rolls, the flanges of t e beam are engaged by the laterally diverging guides 14', which may be made, mounted and adjusted like the parallel guides 14; and' as the beam is driven forward, the divergence of the guides 14" separates the flanges laterally and thereby de-1 tening of the corrugated bonds and the corresponding inclination-of the bars, thereby reducing the thickness of the slightly expanded web.

The bar stretching rolls 4 are formed and operate substantially the same as the bond corrugating rolls 3, the only difference being an increased lateral spacing between the flange dies 29' to bring them in proper position for operating in the corrugations of the partially deployed bonds and bars.

These rollers operate to deepen the corrutions which have been somewhat flattened the slight'expansion, by deflecting alter nate series ofbonds from the plane of'the intervening series of bonds, thereby stretch ing the bars by a longitudinal tension to the increawd len h of the distance between the deflected bon s; and this operation may be accompanied by a corresponding increase in the angle of the corrugations and the inclination of the stretched bars, to shape the same in the form shown in Fig. 16.

The beam continues forward to the lattice flattening rolls 5, and between the stretching and flattening rolls, the flanges are engaged by diverging guides 14", which operate like the diverging guides 14', to further separate the flanges and deploy the corrugated bonds and stretched bar to form rectangular or hexagonal lattice o enings of the width shown in Fig. 18, as tlie beam enters the final flattening rolls; which expansion is made in substantially the same manner as described for the slight initial expansion. I

The lattice flattening rolls 5 are formed and operate substantially the same as the bar flattening rolls 2, except that the width of their cylindric faces 28 corresponds to the increased width of the expanded web; and these rolls operate to compress and flatten the corrugated bonds and inclined bars of the lattice back into the originalplane of the web, as shown in Fig. .21, which is the final and finished form of the beam.

The particular size and shape ofthe opentit ings thus formed in the expanded web by the obli ue lattice bars, depends upon the length 0 the slits and the relative length of the bonds; and the number of rows of openings depends upon the number of rows of bars as determined by the number of rows of slits. 7

By thus expanding the web of a structural shape, the strength and rigidity of the web portion can be made to correspond exactly to the resistance of the flange portions, without an excess in the weight of metal in the expantl ed web portion; thereby enabling structural steel shapes to be used economically in place of wood structural members in building construction.

The improved metal beam described herein, is made the subject matter of another di visional application filed herewith.

We claim:

1. Apparatus for expanding the web of a flanged structural shape or the like, including means slitting the web to form bars, means stretching the bars, means laterally deploying the bars, and means flattening the bars mtothe plane of the web'permitting separation of the flanges.

2.. A paratus for expanding the web of a flange sti uctural shape or the like, including means slitting the web to form bars, and bonds, means deflecting the bonds to stretch the bars, means laterally deploying the bonds and bars. and means flattening the same into the plane of the web permitting separation of the flanges. 7 V 3. Apparatus for expanding the web of a structural shape or the like, including means slitting the web to form bars and bonds,

means corrugating thebonds to stretch the bars, means laterally deploying the bonds and bars, and means flattening the same into the plane of the web. I

4. Apparatus for expanding the web of a structural shape or the like, includin'gmeans slitting the web to form bars and bonds, means flattening the same into the plane of the web, means stretchingthe bars, means laterally deploying the bars and bonds and means flattening the same into the'plane of the web.

5. Apparatus forexpanding the web of a structural shape or the like, including means slitting the web to form bars. a series of means successively stretching the bars and laterally deploying the same, and means flatitening the bars into the plane of the we 6. Apparatus for expanding the web of V abeam haying-side flanges, including roller means sl tting the web to form bars, roller means stretching the bars, guide means sep- 7. Apparatus for expanding the web of a &

beam having side flanges, including roller means slitting'the web to form bars and bonds. roller means deflecting the bonds to stretch the bars, guide means separating the flanges to deploy the bonds and bars, and roller means flattening the same into the plane of the web. I V,

8. Apparatus for expanding the web of a beam having side flanges, including roller "means slitting the web to form bars and bonds, roller means corrugating the bonds to stretch the bars, guide means laterally separating the flanges to deploy the bonds and bars, and roller means flattening the same into the plane of the web.

9. Apparatus for expanding the web of a beam having side flanges, including roller means slitting the web to form bars and b0nds,.r0ller means flattening the same into the plane of the web, roller means stretching the ars, guide means separating the flanges to deploy the bars and bonds, and roller means flattening the same into the plane of the web.

10. Apparatus for expanding the web of" a beam aving side flanges, including roller means slitting the Web to form bars, a series of successive roller means stretching the bars and guide means separating the flanges to deplo the bars, and roller means flattening the ars into the plane efz'the web.

11. Apparatus for expanding the web of a beam having side flanges, including roller means slitting the web to form bars, and ad-' .means slitting the web to forum bars, and

stationary diverging guide means for separating the flanges to deplo the bars.

13. Apparatus for expan ing the web of a beam having side flanges, including roller means slitting the web to form bars,.and stationariy diverging guide means embracing the anges for separating them to deploy the bars.

14. Apparatus for expanding the web of a beam having side flanges, including roller means slittin the web to fprm bars and bonds, and r0 ls having laterally spaced annular flange dies for deflecting the bonds to stretch the bars, the ends of the rolls engaging the inner faces of the flanges. 15. Apparatus for expanding the web of abeam means slittin the web to form bars and bonds, and r0 ls having laterally spaced annular flange dies for deflecting the bonds to stretch the bars, the ends of the rolls enga ing the inner faces of the flanges and the adjacent portion of the webs,

HARRY M. NAUGLE.

ARTHUR J. TOWNSEND.

aving side flanges, including roller. 

